Skip advert
Advertisement
Features

Ferrari Testarossa side strakes - Art of Speed

The Ferrari Testarossa's side strakes are a striking piece of automotive design, and they're more functional than you might imagine

Ferrari Testarossa side strakes

The Eighties. a decade of conspicuous consumption, padded shoulders, Elton John’s supersized specs and cheesecloth shirts. A decade that spawned a supercar so attuned to the era of excess that it starred alongside the rolled-up sleeves of Don Johnson’s jacket in TV’s Miami Vice and was considered visually extravagant enough to earn its slot in the Rocket Man’s garage.

Advertisement - Article continues below

The Ferrari Testarossa, launched in 1984, made its predecessor, the outrageously pretty Boxer, look almost prim. Italian styling house Pininfarina was responsible for both but the width and flattened surfaces of the Testarossa could hardly have contrasted more dramatically with the beautifully contained curves of the Boxer. The new ‘redhead’ was clearly dressed to impress and carried the automotive equivalent of padded shoulders. Even by the OTT standards of the time the move was controversial but, to a degree, it was born of necessity.

> Ferrari F8 Spider 2020 review - the thorn in a McLaren 720S Spider's side

The Boxer’s mid-mounted flat-12 engine had been cooled by a single radiator situated in the nose of the car. This it did more or less successfully. The front-to-rear plumbing, however, had the unfortunate habit of heating up the cabin and its occupants. To circumvent the problem, the Testarossa’s mid-mounted 4.9-litre flat-12 had twin radiators packaged in situ behind the cabin bulkhead. This required a rearward flaring of the bodywork to accommodate the angled radiators and two gaping vents to channel airflow onto them.

But in several of the markets where the Testarossa would be sold, gaping holes in cars were outlawed. Ferrari’s solution was to convert the large apertures into collections of much smaller ones by dressing the holes with long, flowing strakes that extended into the doors and tapered off to a point just shy of their front shutlines. As well as being the flagship Ferrari’s signature design feature (mirrored by the decorative slats running across the width of the tail), the strakes lent a little aero to the job of directing air onto the radiators. They also looked pretty cool in the door mirrors, where they were clearly visible. 

Nicknamed ‘cheese graters’, the Testarossa’s side strakes weren’t perhaps the purest styling detail ever to leave the pen of Pininfarina, but they were easy to copy. Soon the Pontiac Trans Am had them, as did a glut of Japanese sports cars. You could even buy stick-on versions over the counter. But then that was the copycat ’80s. The side strake trend may have died with rolled-up jacket sleeves, but the appeal of the Testarossa is still very much alive.

Skip advert
Advertisement

Recommended

People are angry about the Ferrari Luce’s interior, but that’s a good thing
Ferrari Luce
Opinion

People are angry about the Ferrari Luce’s interior, but that’s a good thing

The interior for Ferrari’s very first electric car has caused a stir, and Maranello shouldn’t be worried
12 Feb 2026
Best Ferraris – Maranello’s masterpieces from Amalfi to Enzo
Best Ferraris
Best cars

Best Ferraris – Maranello’s masterpieces from Amalfi to Enzo

Ferrari is a brand with more than its fair share of illustrious highlights, so we’ve recapped some of the best Ferrari road cars we’ve driven
4 Feb 2026
Ferrari’s future: fewer EVs, more powerful V12s
Ferrari V12
News

Ferrari’s future: fewer EVs, more powerful V12s

Its very first electric car might be just around the corner, but Ferrari has promised further development of its combustion lineup as part of its five…
9 Oct 2025
Why Ferrari’s electric car might have the answer to EV depreciation
Ferrari Elettrica electric car
News

Why Ferrari’s electric car might have the answer to EV depreciation

Battery ageing brings performance, range and residual values down over time, but Ferrari might just have come up with a solution
9 Oct 2025
Skip advert
Advertisement

Most Popular

MST Mk1 Evo is an extreme Ford Escort road rally recreation
MST Mk1 Evo front
News

MST Mk1 Evo is an extreme Ford Escort road rally recreation

MST’s Mk1 Evo is a tarmac rally weapon that only vaguely resembles a Ford Escort
7 Jul 2026
Porsche 911 GT3 S/C review – does a convertible GT3 really make sense?
Porsche 911 GT3 S/C front
Reviews

Porsche 911 GT3 S/C review – does a convertible GT3 really make sense?

Making a GT3 convertible was a bold move by Porsche, but one that makes total sense once you drive it
7 Jul 2026
One-off Ferrari 599 shooting brake is the dream supercar estate
Niels van Roij Daytona Shooting Brake Hommage front
News

One-off Ferrari 599 shooting brake is the dream supercar estate

If a Ferrari FF isn’t quite to your taste, or a bit too common, why not commission a coachbuilder for a one-off 599 shooting brake?
8 Jul 2026